House Republicans have widened their probe of Health and Human Services Secretary Kathleen Sebelius by asking the country’s largest health insurers for information on her fundraising for a nonprofit group promoting ObamaCare.

Leaders on the Energy and Commerce Committee said Friday they have written to 15 insurance companies and other groups asking whether Sebelius had contacted them to solicit funds for ObamaCare’s implementation.

Companies should hand over any internal communications that document conversations with Sebelius or discussions about her request, including emails, lawmakers wrote.
The Sebelius probe began when news broke that she was petitioning major healthcare players to contribute to Enroll America, a group tasked with educating the public about its new health coverage options under healthcare reform.

Republicans have denounced the effort as a “shakedown” that will line the pockets of Obama supporters and former administration officials now working to promote the Affordable Care Act.

The White House and the Department of Health and Human Services (HHS) have defended Sebelius’s actions as legal and consistent with efforts to support Medicare Part D during the George W. Bush administration.

On Friday, Energy and Commerce Committee Chairman Fred Upton (R-Mich.) suggested a conflict of interest when he wrote that “HHS regulation of the health insurance industry will only grow under [healthcare reform], including by approving health insurers to participate in the exchanges.”

Upton is also part of a push for government investigators to probe the legality of Sebelius’s actions.